#include <bits/stdc++.h>
using namespace std;
int n;
int a[100005];
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    sort(a+1,a+n+1);
    for(int i=2;i<=n;i++)
    {
        for(int j=1;j<=i;j++)
        {
            if(a[i]>a[j]&&a[j]!=-1)
            {
                a[j]=-1;
                break;
            }
        }
    }
    int ans=0;
    for(int i=1;i<=n;i++)
    {
        if(a[i]!=-1)
        {
            ans++;
        }
    }
    cout<<ans;
    fclose(stdin);
    fclose(stdout);
    return 0;
}
